preseed

From pre- +‎ seed.

• (verb):
  • (UK) IPA^(key): /pɹiːˈsiːd/
• (noun, adjective):
  • (UK) IPA^(key): /ˈpɹiːˌsiːd/

preseed (third-person singular simple present preseeds, present participle preseeding, simple past and past participle preseeded)

1. To seed in advance.
   • 1974, Committee on Agriculture and Forestry, United States, Senate, Congress, Weather Modification Grants: Hearing Before the Subcommittee on Agricultural ..., page 53:
   • I loaned them the valve that they used to seed the clouds or preseed them with liquid nitrate solution
   • 1982, Francis R. Pettit, Post-Digital Electronics, page 146:

     Also included in the menu is the possibility to preseed the entire LSE matrix to any desired level, thus providing a base for many classes of experiment.

   • 1986, Andrew David Cliff, Peter Haggett, J. K. Ord, Spatial Aspects of Influenza Epidemics, page 18:

     Under this scheme, an outbreak of influenza in one year would preseed the population to give a pattern of latent infectives from which a subsequent outbreak would arise in a later year.

   • 1998, Joyce D. Wilkerson, Clownfishes: A Guide to Their Captive Care, Breeding & Natural History, page 93:

     If you haven't been able to preseed the filter with bacteria from another aquarium […]

   • 2003, Peter E. Vaillancourt, E. Coli Gene Expression Protocols, page 245:

     Preseed plates by spreading approximately 108 phage each of λKH54 and λKH54h80.

preseed (plural preseeds)

1. (biotechnology) A medium specially prepared for a seeding operation.
   • 1988, Roman Saliwanchik, Protecting Biotechnology Inventions: A Guide for Scientists, page 157:

     The preseed is then transferred aseptically to 20-liter seed tanks [....]

   • 1990, DE Steinmeyer, ML Shuler, “Continuous operation of a pressure-cycled membrane bioreactor”, in Biotechnology Progress:

     The preseed was incubated with mild agitation at 30 "C for 24 h.

preseed (comparative more preseed, superlative most preseed)

1. Before a seeding or seed stage of development.
   • 1972, John Gliedman, Terror from the Sky: North Viet-Nam's Dikes and the U. S. Bombing, page 71:

     Increases in one experiment ranged from 10 to 200 times the preseed rainfall from the individual clouds, [....]

   • 2006, Elliott C. Kulakowski, Lynne U. Chronister, Research Administration and Management, page 799:

     There are many traditional sources of funding, but for new spin-off company creation, gaining access to early stage (angel, preseed, and seed) [...]

   • 2007, Sylvie Doublié, Macromolecular Crystallography Protocols, page 31:

     The totality of the preseed culture is added into the final culture composed of the same medium.

• speeder, speered